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About Moonstone Island
Moonstone Island is a creature‑collecting life‑sim set in an open world of 100 floating islands. Players train as alchemists, befriending nature spirits, brewing potions, and battling through card‑based encounters to complete their Alchemy training.
The game blends farming, exploration, and social simulation: you can grow crops, decorate a home with over 300 items, date and marry villagers, and tackle dungeons or the endless INFINIDUNGEON for loot and upgrades.
01 / THE GUIDE
World Exploration
The procedurally generated archipelago contains 100 islands with unique biomes, ancient temples, and dangerous dungeons. Travel is achieved by balloon, broom, or glider, letting you reach the outer edges of the sky‑bound world.
Exploring islands uncovers the dark secret of Moonstone Island while providing opportunities to meet NPCs, collect spirits, and gather ingredients needed for potions and cooking.
- Use the glider from higher islands to spot distant landmarks before descending.
- Use the balloon to travel back to islands you have already explored.
02 / THE GUIDE
Spirit Collection
Over 70 wild spirits can be tamed and befriended. Once captured, spirits join your card‑based encounters, forming the core of your combat team.
A diverse collection of tamed spirits strengthens your battle strategies as you explore.
- Capture a variety of spirit types early to broaden your deck options.
- Explore dungeons to earn upgrades, collect loot and uncover secrets.

03 / THE GUIDE
Alchemy and Crafting
Crops and flowers provide ingredients for potions that help you tame spirits, while cooked dishes grant stat bonuses. Cooking dishes from cultivated ingredients also supplies benefits.
Dozens of items and vehicles can be crafted, preparing you for wilderness travel and enhancing your alchemical experiments.
- Prioritize crops that produce the potions you want on hand for upcoming dungeons.
- Experiment with cooking recipes to discover hidden stat bonuses.
05 / THE GUIDE
INFINIDUNGEON
Beyond story dungeons, the INFINIDUNGEON offers never‑ending battles that reward players with loot. It serves as a test of deck building and spirit synergy.
Rewards from the INFINIDUNGEON can provide resources for further crafting and exploration.
- Refresh your spirit deck regularly as you take on the never-ending battles.
- Keep health‑boosting potions on hand for longer INFINIDUNGEON runs.





04 / THE GUIDE
Social Simulation
The game encourages forming friendships, dating, and marrying villagers, integrating community life into the alchemy journey. Becoming a member of the community is part of settling into island life.
Home customization offers over 300 decorations, allowing you to reflect personal style while living on any of the 100 islands.